发稿时间:2019-07-01浏览次数:251

USTC Astronomy Colloquium Series: 2019 Spring
Observational Planet Formation
Ruobing Dong  教授
University of Victoria
2019/7/2, 4:00pm , the 19th-floor Observatory Hall
Planets form in gaseous protoplanetary disks surrounding newborn stars. As such, the most direct way to learn how they form from observations, is to directly watch them forming in disks. In the past, this was difficult due to a lack of observational capability, and planet formation was a subject of theoretical research. Now, thanks to a fleet of new instruments with unprecedented resolving power that have come online in the past decade, we have just started to unveil features in resolved images of protoplanetary disks, such as gaps and spiral arms, that are most likely associated with embedded (unseen) planets. By comparing observations with theoretical models of planet-disk interactions, the properties of these still forming planets may be constrained. Such planets help us test planet formation models. This marks the onset of a new field: observational planet formation. I will introduce the current status of this field, highlight some of the latest developments, and discuss where this field is heading.
 Prof. Ruobing Dong is an Assistant Professor at the Department of Physics & Astronomy of University of Victoria since 2018. Prof. Dong obtained his Ph.D. in Astrophysics from Princeton University in 2013. After graduation, he was a Hubble Fellow at UC Berkeley from 2013 to 2016, and a Bok Fellow at University of Arizona from 2016 to 2018. Prof. Dong is an expert on theoretical and observational studies of planet formation in protoplanetary disks.